body{
	font-size: 14px;
	font-family: 微软雅黑;
	margin: 0;
	padding: 0;
}
#container{
	margin: 45px auto 0;
	width: 960px;
	min-height: 600px;
}
#window-container{
	margin-top: 10px;
	width: 100%;
	min-height: 600px;
	position:relative;
}
#operator-menu{
	width: 100%;
	height: 40px;
	background-color: #eee;
	border-bottom: 1px #ccc solid;
}
#operator-menu{
	position: fixed;
	top: 0px;
	left: 0px;
	z-index: 10;
}
* html body{
	background-image: url(about:blank);
	background-attachment: fixed;
}
* html #operator-menu{
	position: absolute;
	top: expression_r(documentElement.scrollTop + 250 + "px");
}
#operator-container{
	width: 960px;
	height: 40px;
	margin: 3px auto 0;
}
#footer{
	margin-top: 30px;
	border-top: 1px solid #ccc;
	text-align: center;
	height: 100px;
}
.clear-both{
	clear: both;
}